






;-------------------------------------------------------------------------
; notes here 
;-------------------------------------------------------------------------

;-------------------------------------------------------------------------
; map location and boundary 
;-------------------------------------------------------------------------
 ;res@mpCenterLonF     = 180.                   ; center plot at 180
  res@mpMinLonF        = 100.                   ; select a subregion
  res@mpMaxLonF        = 170.
  res@mpMinLatF        = -45.
  res@mpMaxLatF        =   0.

;-------------------------------------------------------------------------
; cnlevel  
;-------------------------------------------------------------------------
  res@cnLevelSelectionMode = "ManualLevels"     ; set manual contour levels
  res@cnMinLevelValF       = -2000.                ; set min contour level
  res@cnMaxLevelValF       =  2000.                ; set max contour level
  res@cnLevelSpacingF      =   500.               ; set contour spacing



